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ATCU-2   |   ATCU-5   |   ATCU-9   |   ATCU-18

Installations: Retrofitted Systems.

Praecis ATCU-9 Precitech Enclosure Retrofit Installation:

Application: Test Cell

Customer: n/a

Temperature Control Results:

Critical Point held at ± 0.01 ºC with an ambient temperature of 20 ºC ± 0.5 ºC (50:1).


  • ATCU-5 with HEPA filtration.
  • Freestanding enclosure mounted on casters for easy transportability.
  • Porous fabric air distribution plenum suspended from the ceiling of the enclosure.

Enclosure Description:

  • Anodized aluminum support structure, mounted on casters for portability.
  • Porous fabric air distribution plenum suspended from ceiling of enclosure.
  • Clear vinyl roll-up curtains on front and rear allow rapid access to enclosure with a pull on a chain.  Motorized versions are available.
  • Foamed PVC panels, attached with Velcro for easy access shields lower half of enclosure.
  • Detachable front and rear allows for the enclosure to be rolled around device requiring temperature control
  • An extendable tilt-swivel mount to locate the ‘critical point’ thermistor at location identified by user.

Enclosure Size: 

0.75 x 0.89 x 0.75 m (inside enclosure dimensions)
Footprint: 0.50 m²
Volume: 0.67 m³
Air Velocity: 0.5 m/sec

Praecis Environment-5 Complete System. Test Cell.     View 1.

Praecis Environment-5 Complete System. Test Cell. View 1.

Praecis ATCU-9    .

Praecis ATCU-9.


This size enclosure with a footprint of 5.4 m² and a volume of 12.42 m³ is on the upper end of the enclosure size that can be accommodated by the ATCU-5.